Gender mainstreaming was established in the 1995 Beijing Platform for Action as a major strategy for the promotion of gender equality. As a development strategy, gender mainstreaming requires attention to gender perspectives, making them visible and showing the links between gender equality and the achievement of development goals. To evaluate gender mainstreaming in development projects and programmes requires a squaring of evaluation criteria such as relevance, effectiveness, efficiency, impact, and sustainability, with gender mainstreaming indicators at both project and programme level.